Connection with a DOS-systtem

(for "can the DOS system
be a server ?" see the bottom of this page)

Yes, you can with some limits.
Microsoft offers for download a "DOS Client for
Workgroup Networks" called MSWGCN.EXE, which can downloaded from
Microsoft : Status Jan.5,2001: some info is available in the Microsoft
Knowledge Base Q108391,
which has also the download link : ftp://ftp.microsoft.com/softlib/mslfiles/mswgcn.exe :

A warning: these Microsoft DOS-network drivers
are BIG, they take 100 Kbytes of the DOS-memory, so you may need
to use UMB (via EMM386.EXE and DOS=HIGH,UMB) and load as much as
possible drivers into the UMB.

If it is still too much, then I know only one other option: use
on both the DOS and Windows95 system as Network-software "Lantastic" from Artisoft ( http://www.artisoft.com ),
where the DOS-client is much smaller and Lantastic even offers
the possibility to install a DOS-server-module, allowing
Windows95 systems to access the disk of the DOS-system. But
Lantastic is NOT FREE, you need to purchase it! (Artisoft offers
the trial download of Lantastic 7, which is the Win95 version,
but NO a trial version of Lantastic 6, which is the DOS version)